Factors triggering familial mediterranean fever attacks, do they really exist?

Kerem Parlar1, Muhammed Bahaddin Ates1, Mehmet Erinc Onal1

  • 1Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey.

PubMed

Insights

Psychological stress is the most common trigger for familial Mediterranean fever (FMF) attacks. Specific gene mutations correlate with triggers like cold exposure and humidity, enabling personalized FMF management.

Area of Science:

  • Genetics
  • Immunology
  • Rheumatology

Background:

  • Familial Mediterranean fever (FMF) is a genetic autoinflammatory disorder characterized by recurrent attacks of fever and serositis.
  • The precise triggers for FMF attacks remain unclear, hindering effective management and prevention strategies.

Purpose of the Study:

  • To identify the most common triggers of FMF attacks.
  • To investigate the association between these triggers and specific Mediterranean fever gene (MEFV) mutations.

Main Methods:

  • A questionnaire was administered to 882 FMF patients to assess potential triggers.
  • Triggers evaluated included psychological stress, diet, environmental factors, and lifestyle changes.
  • Statistical analysis was performed to correlate triggers with MEFV mutation status.

Main Results:

  • Psychological stress was identified as the most frequent trigger (75.2%) for FMF attacks.
  • Cold exposure significantly correlated with exon 10 mutations.
  • Humidity was a significant trigger for exon 2 mutations.
  • Seasonal changes, travel, relocation, and cold exposure were significant triggers in patients with homozygous M694V mutations.

Conclusions:

  • Identifying FMF attack triggers is crucial for developing personalized preventive measures and therapies.
  • Managing psychological stress and avoiding physical triggers like cold exposure can reduce attack frequency.
  • Understanding the genotype-phenotype correlation of triggers allows for tailored FMF treatment strategies.

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